[Previous][Next]
DTC P1E4C: EEPROM abnormality [BMU (SUB)]
 
 
 
 
MONITOR EXECUTION
  • Continuous
 
 
MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
Other Monitor (There is no DTC set in memory for the item monitored below)
  • Not applicable
Sensor (The sensor below is determined to be normal)
  • Not applicable
 
 
DTC SET CONDITIONS
Logic Flow Chart
Check Conditions
  • BMU (SUB) power supply voltage is 8 volts to 16 volts.
Judgment Criterion
  • EEPROM is fail.
 
 
FAIL-SAFE AND BACKUP FUNCTION
  • Not available
 
 
PROBABLE CAUSES
  • The sub-battery management unit [BMU (SUB)] is failed.
  • Disconnect the 12V starter battery during the sub-battery management unit [BMU (SUB)] activation.
 
 
 
 
DIAGNOSIS
STEP 1. Using scan tool (M.U.T.-IIISE), check whether the DTC is set again.
(1) Erase the set DTC.
(2) Before checking the DTC again, keep the status with the power supply mode of electric motor switch is OFF for more than 1 minute.
(3) Operate the electric motor switch without depressing the brake pedal and turn ON the power supply mode of electric motor switch.
(4) Confirm whether the DTC P1E4C is set.
Is the DTC set?
Remove the battery tray cover (Refer to ). Replace the sub-battery management unit [BMU (SUB)] on main drive lithium-ion battery (Refer to ). Then, assemble the main drive lithium-ion battery assembly (Refer to ).
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).